Drug interactions
Methadone + Ropeginterferon alfa 2b
Severity: Moderate
Methadone and Ropeginterferon alfa 2b: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Interferons can cause neuropsychiatric effects such as depression, somnolence and confusion. With methadone, which has CNS depressant effects, these effects may be additive and lead to excessive sedation or mental status changes.
What this interaction means in plain words
Methadone and Ropeginterferon alfa 2b can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive CNS effects; interferon neuropsychiatric toxicity combined with opioid-related CNS depression.
What to do
Monitor for excess sedation, mood changes and cognitive impairment, and reduce the methadone dose if CNS toxicity appears. Consider alternative therapy in patients with a history of severe depression.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Methadone
- Alvimopan + Methadone Contraindicated
- Calcium / magnesium / potassium / sodium oxybates + Methadone Contraindicated
- Droperidol + Methadone Contraindicated
- Ibutilide + Methadone Contraindicated
- Isocarboxazid + Methadone Contraindicated
- Lefamulin + Methadone Contraindicated
Frequently asked questions
Can I take Methadone with Ropeginterferon alfa 2b?
MediHelp rates the interaction as moderate. Methadone and Ropeginterferon alfa 2b can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Interferons can cause neuropsychiatric effects such as depression, somnolence and confusion. With methadone, which has CNS depressant effects, these effects may be additive and lead to excessive sedation or mental status changes.
How serious is the interaction between Methadone and Ropeginterferon alfa 2b?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for excess sedation, mood changes and cognitive impairment, and reduce the methadone dose if CNS toxicity appears. Consider alternative therapy in patients with a history of severe depression.
What other medicines interact with Methadone?
MediHelp also lists interactions of Methadone with, for example, Alvimopan, Calcium / magnesium / potassium / sodium oxybates, Droperidol. The full list is on the Methadone page.
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